Apparatus for tempering



2 Sheets-Sheet 1 J. C. DAVIS APPARATUS FOR TEMPERING Original Filed Oct. 24, 1923 Nov. 24 1925.

ll ntent ans cann nnvrs, or onrcaao, more.

APPARATUS liUR- TEMPERING.

ori inal application and scrotal-as, mas, Serial noj srcaes. Divided and this application filed time i is, was. Serial remorse.

To all whom it may concern."

Be it known that l. JAMES CAREY DAVIS, a citizen of the United States, and 'a resident of Chicago, in the county of Cook and d htate ofllllinois, have invented certain new and useful Improvements in Apparatus for Tempering, of which the following is a specification. I

My. present invention relates to the art of tempering in general. more particularly to the tempering of metal and specifically to the localized hardening of steel castings containing amodiiyin'g agent. Broadly considered, the invention comprehends an imllt proved method for tempering, an apparatus Flor, carrying out the tempering method, and the resultant improved product. The said improved method and the resultant improved product are included within the subject matter oil; my co -pending application for Letters Patent filed v.Uctoher 2t, 1923 Serial No.

67 0,4586, of which the present case is a division, l/Vhile the invention has a loroad held of usefulness tor changing the state'oi various I articles or different composition, l have found it of peculiar utility lorproducing a cast steel carvvheels containing manganese as a moditying agent and l, there'lore, find W it convenient to describe the invention in connection with such a product, it heing understood that such limited lield oi specific description isemployed purely tor purposes oi an example of the utility of the invention in its several phases. 7 y The principal objects of the present invention are the provision of an improved method of tempering; the provision of an improved apparatus for tempering; the pro till vision of an improved tempered product; the

provision of a method of tempering characterized low a localisation of the tempering; provision oi a method oi tempering wherein the area oi the tempering may he sulostantially controlled within predetermined limits; the provision oi a method of tempering characterized lay the direction ot" liuid upon predetermined parts only of the article to he tempered; the provision of a method oil tempering characterised by a ditilerential or progressive tempering oi the article; the provision of a method or tempering characterised hy the employment oi means to prevent action oi? the tempering certainparts of the article upon which the operation is performed are left unchanged,

till

the provision of a method of tempering" characterized by the directing of a treating fluid upon the article to he tempered, in general. and, in particular, means for directing such fluid upon the precise area desired to he acted upon; the provision of a method of tempering characterized hy the employment of a plurality oi streams oi dili'erent volume or intensity whereby areas of the article may be torn ered difi'erentially; the provision of a met 0d oi tempering characterized by the provision of means where by the article may hesuhjected to equivalent amounts of treating fluid at all pre determined points so that a substantial uni.- formity oi tempering may be attained; the provision of an improved apparatus for carrying out the several ohjiects set forth; the provision of a tempering apparatus characterized loy means for a localization oi illithe tempering, in general, and more particm larly, means wherehy the area of tempering may'lbe suhstantially limited; the provision of tempering apparatus characterized hy the provision of means for ejecting the tempering lluid upon a predetermined point or points in general, and, in particular, by the employment of a plurality of ejector memhers so arranged that the article may he tempered diderentially or progressively and thus predetermined varying qualities imparted thereto; the provision in a tempering apparatus oil means'ifor preventing tempering action upon the parts or the article which it is not desired to change; the provision of a tempering apparatus characterized hy the horizontal'ejection of the tempering fluid so that parts oi the ohject may remain unmodified; the provision of a temporing apparatus characterised lay-the employment oi aplurality oi? series oi"? streams oi tempering fluid, in general, and in particular, one wherein the volumes oil? fluid oi the several streams difler and thus the action thereoi may be varied dihlerentially and progressively; the provision ot a tempering apparatus characterised lay the em tilt till

'oyinent e stiieiot peoteeting the ertioie 'efi upon from the action of the tempering "'uic't, end the provieion of en improveoi means for onemting such shield, togettzee with such ifurther objeots, benefits end: ecivantages es may hereineiter appear or may toe pointei out.

the attainments of the foregoing oL- jeets and ces: n edditionei benefits and ed.- venteges to herein I er otiseioseei, it fine? 5 il i1 in e elet" rim of the I h 1 1 y wear one r not eecome GOVQQi service.

s most oes us enei, thoi'efoi'e, oitoe the Wieieh o ineriiy of i'oiness burdened, n" that the me?- at sortie oi. the tre'eol which. is opposite 5 ieeeives much less Wear,

net tiveiy i s contact with 4 heed, to and Feietiveiy soit so that the Wneei hid in service Witt weer Gown unieormiy. t MYKQWESQ desiretoie that the Web and; center of the. Wheel the eeeoinpenying eirewings- Figure 2 is 'seetionei View taken on the Figure 3 is e fragmen -Jetty sectionet pien Figure is e transverse sectional View 8 ures 1 amt 2 of the drawings it will be 0' lin 10 provideoi with e chamber 11 having be ieft Tee in then F6]1& tzveiy sott stete.

Figure 1 pien ViGW of the tempering e; peeetue;

time H-H of Figuee ii, the wheel being shown therein in etevet oe;

view of the part of the eppemtus in Figure 1; end

of the Wheel tread,

Referring first more perticuieriy to Fi SQFVQ'Ji that the tempering apparatus here shown comprises an etluptieofly formefl oesconnections to sources of fluid 12, Toefie pietes 1O being disposed 1n semi eesing 1.0

edjeeent the i iets l3 tions 12, in order to p "urging fiuici tiirougl v be edjee shortly he befiie plates 10 prodescribed; vicie& with suitable ports 14; 0? the eo ueiizetion of ie t pressure Within seid casing 16, to the e? the discharge through the several jets be substentieiiy uniform, end eieen-oet e iniets ere provnied, with g r55 order o, Wher ed, as

case of a who tread, the article act A may be t ain-11W uniiormiy, i;

venient to meet the member in. the cesin i e contour eori'espoi" 30 such mete, thus ce e Wile-e11 tread I. chamber 1 is q 7 fr the chem o h esent acted upon,

of nozzles 18. The letter t on viewinn cnre ranged m e and.

center of We ieei,

centered in easing W teineei by opontin will be seen 0 i 18 are of series .26,

throet 23 m lesirebie iet thicot quantity the nozz eries ieest ouenti 'ough t, nozzle the series cont,

n of nozzie d l A iveiyl numbers 1' At various times and To? various poses, and e eoieiigy in t e present e 1 A .azU

0 1S olesi. W e to :1 eiie ei'tioie acted upon mom action 0 the s 2o, 21, 22. purpose e, Wheel tree certain part the, temperir" emitted from the accompiis provnieo the ietct 242, for pro'eeting" an erticie v in cross section mey Toe bend of 5 metal such es is induce l Mgure '3). One end of this bend 25 be attached. to e crank 26 opposite enoi of the band 2'? passing a; rough e stirrup 28 on. erm 26 may be etteehed to the casing 3.0 at e convenient point sueh as indicated 22.-

For the purpose of centre-acting the band 24 u on the eetieie to be treateot, e. g, the whee 17, an operating lever 39 eonnectee by the link the arm 28, mey ice empioyedi. To feeiiitete one action of the shiem, e. im/ oont tension nieh when used nlch 1s circular i ew 32 l'iaving a suitable connection to the ex tempering fluid, a protecting shield, means terior of the casing at a convenient point such as is indicated at 33, may be utilized.

From the foregoing description of my improved method of an apparatus for tempering, it will be perceived that the resultant product may be tempered as desired, that such tempering may be localized, that such tempering may be uniform, as for example, in belts around a cylindrical object such as a wheel tread, and that by'its use belts of difl'ering hardness may be produced, such as those indicated by the index numbers, according to the Brinell hardness scale appearing on the inner periphery, the flange, the throat, the tread 16 and the outer periphery 3d of the wheel whose contour in cross-section is outlined in Figure 4, and all this without aflecting such parts as may be desirably left unchanged.

Other advantages and uses of my present invention will occur to those who are skilled in the art.

Having thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent is:

1. A tempering apparatus comprisin in combination, a source of tempering uid, and means for directing a plurality of streams of fluid of different volumefrom such source upon the article to be tempered.

2. A tempering apparatus comprising, in combination, a source of tempering fluid, and means for directing a plurality of series of streams or currents of fluid of different volume from such source upon the article to be tempered. a

3. A tempering apparatus comprising, in combination, a source of tempering fluid, and means for directing a plurality of streams or currents of fluid of different volume from such source upon the article to be tempered, one of said streams being above another thereof.

4. A tempering apparatus comprising, in combination, source of tempering fluid, and means for directing a plurality of series of streams of fluid from such source upon the article to be tempered, one of said series being above another thereof, and

having a larger volume.

5. A tempering apparatus comprisin in combination. a source'of tem ering uid, and means for directing said uid upon an article to strike it in distinct layers.

(5. A tempering apparatus for car wheels comprising, in combination, a source of temperingfluid, a protecting shield, and means for directing a stream of fluid from such source upon the tread portion of the wheel to be tempered, the shield being arranged to deflect such fluid from other portions of the tread. a,

7. A tempering apparatus for car wheels comprising, in combination, a source of for directing a stream of fluid from such source 'upon the tread portion of the wheel to be tempered, the shield being arranged to deflect such fluid from other portions of the tread subject to the direct effects of the stream and means for causing such shield to follow the contour of the article to be tempered. I

8. A tempering apparatus for car wheels comprising, in combination, a source of tempering fluid, a protecting shield, means for directing a stream-of fluid from such source upon the tread portion of the wheel to be tempered, the shield being arranged to deflect such fluid fromother portions of the tread subject to the direct effects of the stream and means for causing the shield to encircle the article to be tempered.

9. A tempering apparatus, comprising, in combination, a source of tempering fluid, a protecting shield, means for directing a stream of fluid from such source upon a tit) portion of the article' to be tempered, the

shield being arranged to deflect such fluid away from another portion of such article, and means for contracting such shield upon the article to be tempered.

10. A tempering apparatus comprising, in combination, a source of tempering fluid, a protecting shield, and means for directing a stream'of fluid from such source upon a portion of the article to be tempered, the

shield being arranged to deflect such fluid away from another portion of such article, and means for contracting such shield upon the-article and expanding away therefrom.

11. A tempering apparatus comprising, in combination, a source of tempering fluid, a yieldingly resistently mounted shield,

means for directing a stream of fluid from such source upon a portion of the article to be tempered, the shield being arranged to deflect such fluid away from another portion of such article, and means moving such shield.

12. A tempering apparatus comprising, in combination, a source of tempering fluid, a spring actuated protecting shield, means for directing a stream of fluid from such source upon a portion of the article to be tempered, the shield being arranged to deflect s'uch fluid away from, another portion of such article, and means for moving such shield against the action of the spring.

13. A I tempering apparatus comprising, in combination, a source of tempering fluid, a protecting shield and means for directing a stream of fluid from such source upon a portion of the article to be tempered, the

shield being arranged to deflect such fluid away from another portion of such article,

and an operating lever for moving such shield towards and away from the article.

14. A tempering apparatus, comprising,

in combination, a source of tempering fluid, a protecting shield, means for directing a stream of fluid from such source upon a portion of the article to be tempered, the shield being arranged to deflect such fluid away from another portion of such article, and a yieldingly resistant operating lever for expanding and contracting such shield.

15. A tempering apparatus for car wheels comprising, in combination, a source of temering fluid and means for directing fluid rom such a source upon a restricted portion of the tread of the Wheel to be tempered including ejector members.

16. A tempering apparatus for car Wheels comprising. in combination, a source of tempering fluid, and means for directing fluid from such source upon a restricted portion of the tread of the wheel to be tem ered includin a luralit of series P s p y of e ector members.

17. A tempering apparatus, comprising, in combination, a source of tempering fluid and means for directing fluid from such source upon the article to be tempered including a plurality of series of ejector members, the top-most series having the largest number of ejector members.

18. A tempering apparatus for car wheels comprising, in combination, a source of tempering fluid, and means for directing fluid from such source upon a restricted portion of the tread of the heel to be tempered, including ejector members, the

several ejector members being symmetrically arranged with reference to the axis of the apparatus.

19 A tempering apparatus for car wheels comprising, in combination, a source of tempering fluid and means for directing fluid fromsuch source upon a restricted portion of. the tread of the wheel to be tempered including ejector members, the several ejector members being concentrically arranged.

.20. A tempering apparatus comprising,

ing in intensity so that the gravitational flow of the fluid from the upper streams, plus the flow of the fluid from the lower streams, will impinge a substantially uniform quantity of fluid upon a portion to be tempered.

In testimony whereof I have hereunto signed my name.

JAMES CAREY DAVIS. 

